Split Second Response Instructors

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Dr. Tim Calvin

Ed.D., MBA, CEO & Founder

Dr. Tim Calvin is the founder and CEO of Split-Second Response, Inc. Dr. Calvin began training in the martial arts in 1994 and founded the Conditioned Combat Response ...

Jarell Calvin

Master Instructor

Jarell Calvin is the Master Instructor at Split-Second Response. Master Jarell began training in the martial arts in 1997, earning a 5th-degree Black Belt in Conditioned Combat ...

Tiera Calvin

Sales Manager

Simu Tiera Calvin is the manager of our sales department. Tiera graduated from Liberty High School in 2023. Tiera is a 3rd Degree Black Belt in our Conditioned Combat Response ...

Darius "DJ" Rackley

Firearms Instructor

DJ is one of SSRs amazing Firearms Instructors. DJ is currently an officer with the California Highway Patrol (CHP) and a veteran of the U.S. Navy where we served as a Navy ...

Join Us Here In Oakley Today For The Best Martial Arts Training In Town!

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Michael Kenner

I guarantee you will want to come back every day for training after attending once. The instructors are great, personable and professional. They even provide Self Defense classes and Firearms training courses.

Andrew D

Great, friendly, and flexible staff. Master Tim and his family are awesome people and everyone I've met there have been nothing but kind. I would recommend this martial arts studio to anyone, especially beginners. I wish I had joined sooner.

James Nelson

This is a great place for the whole family. All of my children and some of my grand-children have trained with this academy over the years. The instruction and wisdom that has been given is priceless!!! They treat you as family because you are.

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